Products by Corbett Canyon:

Company email (November 2016)
"Fining agents containing gelatin derived from pork and fermentation aids containing casein from milk may be used in the production of Corbett Canyon wines. In general, these agents are insoluble in wine and are removed during subsequent clarification and filtration. It is our understanding that if any animal product has been in contact with the wine, we cannot claim it to be vegan."